Water-based paint viscosity detection system

Abstract

A water-based paint viscosity detection system disclosed by the present invention comprises a workbench, a mounting rack and a viscosity detection execution device, the workbench is provided with a placing station, the placing station is used for placing a to-be-detected container, the to-be-detected container is used for storing a to-be-detected water-based paint, the workbench is provided with the mounting rack, and the viscosity detection execution device is arranged on the mounting rack. A viscosity detection execution device is mounted on the mounting frame; the viscosity detection execution device comprises a rotation driving mechanism, a detachable positioning mechanism, a detection rotation frame, a rotation torque sensor and a control box, the rotation driving mechanism is installed on the installation frame, and the output end of the rotation driving mechanism is connected to the rotation torque sensor; the rotation torque sensor is connected with a detection rotation frame through a detachable positioning mechanism, and the detection rotation frame can extend into the to-be-detected container located at the placing station. The water-based paint viscosity detection system solves the problem that in the prior art, the viscosity detection result is affected due to the fact that paint on the detection rotating frame is solidified for multiple times.

Description

Technical Field

[0001] This invention relates to the field of coating testing, and more specifically to a viscosity testing system for water-based coatings. Background Technology

[0002] Chinese patent disclosure discloses a water-based coating viscosity testing device and its testing system, application number CN202310765928.8. The water-based coating viscosity testing device includes a viscosity testing structure and a load-bearing transmission structure. The lower end of the viscosity testing structure is fixedly connected to the load-bearing transmission structure. The viscosity testing structure can be height adjusted and can perform viscosity testing of water-based coatings. At the same time, it can avoid operational interference during testing. The load-bearing transmission structure can support the viscosity testing structure and facilitate the transmission of water-based coating buckets. During the transmission of water-based coating buckets, it can perform position sensing. The viscosity testing structure includes a control detection component and a drive positioning component. The lower end of the control detection component is fixedly connected to the drive positioning component, and the control detection component performs lifting and lowering detection.

[0003] Although this water-based coating viscosity testing equipment can perform viscosity testing of water-based coatings, it still has the following drawbacks: after each viscosity test, there must be a certain interval between tests, during which the coating solidifies on the rotating testing rack. This repeated solidification after multiple tests leads to the deposition of impurities on the rotating testing rack, resulting in inaccurate test results. Summary of the Invention

[0004] The present invention provides a viscosity testing system for water-based coatings, which solves the problem in the prior art where the viscosity testing results are affected by the repeated solidification of the coating on the rotating test rack.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: The present invention discloses a water-based coating viscosity testing system, comprising: a workbench, a mounting frame, and a viscosity testing execution device. A placement station is provided on the workbench for placing a container to be tested, which stores the water-based coating to be tested. A mounting frame is installed on the workbench, and the viscosity testing execution device is mounted on the mounting frame. The viscosity testing execution device comprises: a rotary drive mechanism, a detachable positioning mechanism, a detection rotary frame, a rotary torque sensor, and a control box. The rotary drive mechanism is mounted on the mounting frame, and its output end is connected to the rotary torque sensor. The rotary torque sensor is connected to the detection rotary frame via the detachable positioning mechanism. The detection rotary frame can extend into the container to be tested located at the placement station. The output end of the rotary torque sensor is connected to the control box.

[0006] Preferably, the rotating testing frame is provided with a first positioning position and a second positioning position. The first positioning position is located on the side of the second positioning position close to the rotation torque sensor. The first positioning position and the second positioning position are separated by a distance in the direction of the axis around which the rotating testing frame rotates. The first positioning position of the rotating testing frame can be positioned and cooperated with the detachable positioning mechanism, and the second positioning position of the rotating testing frame can also be positioned and cooperated with the detachable positioning mechanism.

[0007] Preferably, the rotary torque sensor has a guide portion extending from the side opposite to the output end of the rotary drive mechanism, and the guide portion guides the detection rotary frame to move in the direction of the axis around which the detection rotary frame rotates.

[0008] Preferably, the mounting frame includes: a base frame, a top box, and a rotation limiting structure. The bottom end of the base frame is fixed to the worktable, and a rotatable top box is installed at the top of the base frame. The top box is equipped with a viscosity detection actuator. A rotation limiting structure is installed at the hinge between the top box and the base frame. The rotation limiting structure is used to restrict the rotation of the top box relative to the base frame.

[0009] Preferably, an anti-extension bracket is installed at the top box, which is used to position the detachable positioning mechanism and the second positioning position of the detection rotating frame to maintain positioning cooperation.

[0010] Preferably, the top box can rotate to the working position and the pre-inspection position. When in the pre-inspection position, the inspection rotating frame is offset from the container to be inspected located at the placement position. When in the working position, the inspection rotating frame is located in the container to be inspected extending into the placement position. A support frame is installed next to the base frame to support the top box when it is in the pre-inspection position.

[0011] Preferably, the anti-extension frame is connected to an adjustment part, which protrudes from the side of the top box. The anti-extension frame and the adjustment part can move together relative to the top box in the radial direction of the rotation torque sensor. When the rotation limiting structure allows the top box to rotate relative to the base frame, the rotation limiting structure causes the anti-extension frame to hook onto the detection rotating frame by squeezing the adjustment part. When the rotation limiting structure prevents the top box from rotating relative to the base frame, the rotation limiting structure does not squeeze the adjustment part.

[0012] Preferably, the rotary drive mechanism includes: a rotary drive unit, a gear set, and a drive gear ring. The rotary drive unit is mounted on the top box. The output end of the rotary drive unit is connected to the input end of the gear set. The output end of the gear set meshes with the drive gear ring. The drive gear ring is connected to a rotary torque sensor. The drive gear ring and the rotary torque sensor do not obstruct the detection of the lifting and lowering of the rotary frame.

[0013] Preferably, a detachable positioning mechanism is fixed on the guide section.

[0014] Preferably, the detachable positioning mechanism includes a retaining ring and snap-fit ​​arms. The retaining ring is fixed to the guide portion, and an even number of snap-fit ​​arms are fixed on the retaining ring, with the snap-fit ​​arms evenly distributed on the circumference of the retaining ring.

[0015] Compared with the prior art, the present invention has the following advantages: In this application, by setting a detachable positioning mechanism, the detection rotating frame and the rotation torque sensor are detachably connected. The detection rotating frame can be separated from the rotation torque sensor, so that the detection rotating frame can be disassembled after each test. This facilitates the cleaning of the coating on the detection rotating frame, avoids the formation of impurities due to long-term solidification of the coating, avoids uneven distribution of impurities on the detection rotating frame, and avoids inaccurate detection results of the rotation torque sensor due to changes in the weight of the detection rotating frame caused by impurities. Viscosity testing does not require a large number of tests. It can be tested once after each coating is stirred and formed, or once by sampling. Therefore, there is enough time to replace the detection rotating frame with a new one after testing, thereby ensuring the accuracy of viscosity testing.

[0016] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a water-based coating viscosity testing system.

[0018] Figure 2 This is a cross-sectional view of a water-based coating viscosity testing system.

[0019] Figure 3 for Figure 2 Enlarged view of the medium viscosity detection actuator.

[0020] Reference numerals: Workbench 1, Mounting frame 2, Base frame 21, Top box 22, Rotation limiting structure 23, Fixed gear ring 231, Movable gear ring 232, Connecting rod 233, Pushing part 234, Push-open elastic part 235, Anti-extension frame 24, Adjusting part 240, Reset elastic part 241, Rotary drive mechanism 31, Rotary drive part 311, Gear set 312, Drive gear ring 313, Detachable positioning mechanism 32, Fixed ring 321, Snap-fit ​​arm 322, Detection rotating frame 33, First positioning hole 331, Second positioning hole 332, Detection rotating shaft 333, Rotating blade 334, Rotation torque sensor 34, Guide part 340. Detailed Implementation

[0021] To make the technical means, creative features, objectives, and effects of this invention clearer and easier to understand, the invention will be further described below in conjunction with the accompanying drawings and specific embodiments: like Figures 1 to 3As shown, this invention discloses a water-based coating viscosity testing system, including: a workbench 1, a mounting frame 2, and a viscosity testing execution device. The workbench 1 is provided with a placement station for placing a container to be tested, which is used to store the water-based coating to be tested. The mounting frame 2 is installed on the workbench 1, and the viscosity testing execution device is installed on the mounting frame 2. The viscosity testing execution device includes: a rotary drive mechanism 31, a detachable positioning mechanism 32, a detection rotary frame 33, a rotary torque sensor 34, and a control box (not shown in the figure). The rotary drive mechanism 31 is installed on the mounting frame 2. The output end of the rotary drive mechanism 31 is connected to the rotary torque sensor 34. The rotary torque sensor 34 is connected to the detection rotary frame 33 through the detachable positioning mechanism 32. The detection rotary frame 33 can extend into the container to be tested located at the placement station. The output end of the rotary torque sensor 34 is electrically connected to the control box.

[0022] The workbench 1 is a base that facilitates the installation of the mounting bracket 2 and the viscosity detection actuator.

[0023] Optionally, the rotary torque sensor 34 adopts a ring structure. The torque signal output by the rotary torque sensor 34 is closely related to the viscosity of the coating. The control box calculates the viscosity based on the torque signal.

[0024] In this application, the detection rotating frame 33 is provided with a first positioning position and a second positioning position. The first positioning position is located on the side of the second positioning position close to the rotation torque sensor 34. The first positioning position and the second positioning position are separated by a distance in the direction of the axis around which the detection rotating frame 33 rotates. The first positioning position of the detection rotating frame 33 can be positioned and cooperated with the detachable positioning mechanism 32, and the second positioning position of the detection rotating frame 33 can also be positioned and cooperated with the detachable positioning mechanism 32.

[0025] Preferably, the detection rotating frame 33 is provided with at least two first positioning holes 331 and at least two second positioning holes 332. The first positioning holes 331 are positioned and engaged with the detachable positioning mechanism 32, and the second positioning holes 332 are also positioned and engaged with the detachable positioning mechanism 32. All the first positioning holes 331 are located on a circumference with the axis of the detection rotating frame 33 as the center, and all the second positioning holes 332 are located on a circumference with the axis of the detection rotating frame 33 as the center. The first positioning holes 331 are located on the side of the second positioning holes 332 closer to the rotation torque sensor 34.

[0026] As mentioned above, the first positioning position is the location of all the first positioning holes 331, and the second positioning position is the location of all the second positioning holes 332.

[0027] In this application, the detection rotating frame 33 includes: a detection rotating shaft 333 and a rotating blade 334. The detection rotating shaft 333 is used to connect to the rotation torque sensor 34 (this connection method is to connect to the housing of the rotation torque sensor 34). The rotating blade 334 is fixed at the end of the detection rotating shaft 333 that extends out of the top box 22. The first positioning hole 331 and the second positioning hole 332 are opened on the detection rotating shaft 333.

[0028] In this application, the rotary torque sensor 34 has a guide portion 340 extending from the side opposite to the output end of the rotary drive mechanism 31. The guide portion 340 guides the detection rotary frame 33 to move in the direction of the axis around which the detection rotary frame 33 rotates. The guide portion 340 guides the detection rotary frame 33 to move in the direction of the axis around which the detection rotary frame 33 rotates, thus preventing the detection rotary frame 33 from shifting relative to the top box 22.

[0029] To rotate the rotating testing frame 33 away from the container to be tested, the mounting frame 2 includes a base frame 21, a top box 22, and a rotation-limiting structure 23. The bottom end of the base frame 21 is fixed to the worktable 1, and the top of the base frame 21 is equipped with a rotatable top box 22. The viscosity testing actuator is installed in the top box 22. The rotation-limiting structure 23 is installed at the hinge between the top box 22 and the base frame 21. The rotation-limiting structure 23 is used to restrict the rotation of the top box 22 relative to the base frame 21. Adjusting the rotation-limiting structure 23 allows the top box 22 to be released, enabling it to rotate relative to the base frame 21; alternatively, the rotation-limiting structure 23 can position the top box 22 on the base frame 21, thereby allowing the top box 22 to rotate relative to the base frame 21.

[0030] To prevent the detection rotating frame 33, which is retracted into the top box 22, from falling out during the rotation of the top box 22 when it is connected to the rotation torque sensor 34, an anti-extension frame 24 is installed at the top box 22. The anti-extension frame 24 is used to maintain the positioning cooperation between the detachable positioning mechanism 32 and the second positioning position of the detection rotating frame 33. This ensures that the detection rotating frame 33 is hooked by the detachable positioning mechanism 32, preventing the detection rotating frame 33, which is retracted into the top box 22, from arbitrarily protruding out of the top box 22.

[0031] like Figure 2 As shown, the top box 22 can rotate to the working position and the pre-inspection position. In the pre-inspection position, the inspection rotating frame 33 is offset from the container to be inspected located at the placement position. In the working position, the inspection rotating frame 33 is located within the container to be inspected, extending into the placement position. A support frame is installed next to the base frame 21, supporting the top box 22 in the pre-inspection position. This allows the top box 22 to be supported by the support frame after rotation, reducing the load on the rotation-limiting structure 23 and protecting it.

[0032] In this application, the anti-extension frame 24 is connected to an adjustment part 240, which protrudes from the side of the top box 22. The anti-extension frame 24 and the adjustment part 240 can move together relative to the top box 22 in the radial direction of the rotation torque sensor 34. When the rotation limiting structure 23 allows the top box 22 to rotate relative to the base frame 21, the rotation limiting structure 23 causes the anti-extension frame 24 to hook onto the detection rotation frame 33 by squeezing the adjustment part 240. When the rotation limiting structure 23 prevents the top box 22 from rotating relative to the base frame 21, the rotation limiting structure 23 does not squeeze the adjustment part 240.

[0033] Optionally, the rotation limiting structure 23 includes: a fixed gear ring 231, a movable gear ring 232, a connecting rod 233, a pushing part 234, and a pushing elastic part 235. The fixed gear ring 231 is fixed to the base frame 21. A movable gear ring 232 is installed on the top box 22 and can protrude from the top box 22. The movable gear ring 232 is fixed to the connecting rod 233. The connecting rod 233 is connected to the pushing part 234 located outside the top box 22. The pushing part 234 and... A push-open elastic part 235 is connected between the top box 22. The elastic force of the push-open elastic part 235 causes the movable toothed ring 232 to disengage from the fixed toothed ring 231. The push-push part 234 can be manually pushed to make the movable toothed ring 232 engage with the fixed toothed ring 231. Only when the anti-extension frame 24 hooks the detection rotating frame 33 can the push-push part 234 be pushed to make the movable toothed ring 232 engage with the fixed toothed ring 231. At this time, the adjustment part 240 prevents the push-push part 234 from approaching the top box 22.

[0034] A reset elastic part 241 is connected between the anti-extension frame 24 and the inner wall of the top box 22. The reset elastic part 241 causes the end of the anti-extension frame 24 that hooks onto the detection rotating frame 33 to be located in the middle of the detection rotating frame 33.

[0035] In this application, the rotary drive mechanism 31 includes a rotary drive unit 311, a gear set 312, and a drive gear ring 313. The rotary drive unit 311 is mounted on the top box 22. The output end of the rotary drive unit 311 is connected to the input end of the gear set 312. The output end of the gear set 312 meshes with the drive gear ring 313. The drive gear ring 313 is connected to a rotation torque sensor 34. The drive gear ring 313 and the rotation torque sensor 34 do not obstruct the detection of the lifting and lowering of the rotating frame 33. The rotary drive unit 311 can be a motor, or it can be a rotary cylinder or other structure that drives rotation. The rotary drive unit 311 drives the drive gear ring 313 to rotate via the gear set 312.

[0036] In this application, a detachable positioning mechanism 32 is fixed on the guide portion 340. The guide portion 340, the rotational torque sensor 34, and the drive gear ring 313 are fixed together, and the guide portion 340, the rotational torque sensor 34, and the drive gear ring 313 can rotate together.

[0037] In this application, the detachable positioning mechanism 32 includes a fixed ring 321 and snap-fit ​​arms 322. The fixed ring 321 is fixed to the guide portion 340, and an even number of snap-fit ​​arms 322 are fixed on the fixed ring 321, with the snap-fit ​​arms 322 evenly distributed on the circumference of the fixed ring 321. The connection between the snap-fit ​​arms 322 and the fixed ring 321 is elastic, and the distance between two adjacent snap-fit ​​arms 322 is equal, thereby ensuring that the snap-fit ​​arms 322 are evenly distributed on the circumference of the fixed ring 321. This prevents any part of the fixed ring 321 from being too heavy, which could cause a position below the rotary torque sensor 34 to be too heavy and deviate from the center of gravity, and prevent the center of gravity from being off the axis of the fixed ring 321, thus affecting the detection results of the rotary torque sensor 34. The snap-fit ​​arm 322 engages with the first positioning hole 331 or the second positioning hole 332. When it is necessary to disassemble the detection rotating frame 33, only by releasing the rotation limiting structure 23 and the anti-extension frame 24 can the detection rotating frame 33 be pulled forcefully, so that the detection rotating frame 33 is disengaged from the detachable positioning mechanism 32.

[0038] In this application, firstly, a detachable positioning mechanism 32 is designed to allow the rotating inspection frame 33 to be disassembled for cleaning; secondly, to prevent the container to be inspected from being blocked by the top box 22 and the rotating inspection frame 33 during transfer, the rotating inspection frame 33 is designed to be raised to a second positioning position to engage with the detachable positioning mechanism 32; thirdly, to ensure the stability of the positioning at the second positioning position, an anti-extension frame 24 is designed, which hooks onto the rotating inspection frame 33 during the rotation of the top box 22; fourthly, to ensure that the top box 22 can be stably positioned at a certain location, a rotation-limiting structure 23 is designed; and fifthly, to prevent the top box from rotating... Since the anti-extension frame 24 was not adjusted during the process, the push part 234 of the rotation limiting structure 23 was designed to squeeze the adjustment part 240, thereby keeping the anti-extension frame 24 in position to detect the rotating frame 33. At the same time, the push part 234 can only be pushed when the anti-extension frame 24 hooks the rotating frame 33. Finally, in order for the anti-extension frame 24 to hook the rotating frame 33 after it extends in, the drive gear ring 313, the rotation torque sensor 34, the fixing ring 321 and the guide part 340 are all coaxial ring structures. The rotating frame 33 has an insertion hole for the anti-extension frame 24 to extend into. The inner wall of the insertion hole is recessed to form a hook groove for the anti-extension frame 24 to hook.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A water-based coating viscosity testing system, characterized in that, include: The workbench, mounting rack, and viscosity testing device are provided. The workbench is equipped with a placement station for placing the container to be tested. The container to be tested is used to store the water-based coating to be tested. The mounting rack is installed on the workbench, and the viscosity testing device is installed on the mounting rack. The viscosity detection actuator includes: a rotary drive mechanism, a detachable positioning mechanism, a detection rotary frame, a rotary torque sensor, and a control box. The rotary drive mechanism is mounted on the mounting frame, and the output end of the rotary drive mechanism is connected to the rotary torque sensor. The rotary torque sensor is connected to the detection rotary frame through the detachable positioning mechanism. The detection rotary frame can extend into the container to be tested located at the placement station. The output end of the rotary torque sensor is connected to the control box.

2. The water-based coating viscosity detection system according to claim 1, characterized in that, The rotating testing frame is provided with a first positioning position and a second positioning position. The first positioning position is located on the side of the second positioning position closer to the rotation torque sensor. The first positioning position and the second positioning position are separated by a distance in the direction of the axis around which the rotating testing frame rotates. The first positioning position of the rotating testing frame can be positioned and cooperated with a detachable positioning mechanism, and the second positioning position of the rotating testing frame can also be positioned and cooperated with a detachable positioning mechanism.

3. The water-based coating viscosity detection system according to claim 2, characterized in that, The rotary torque sensor has a guide extending from the side opposite to the output end of the rotary drive mechanism. The guide guides the detection rotary frame to move in the direction of the axis around which the detection rotary frame rotates.

4. The water-based coating viscosity detection system according to claim 3, characterized in that, The mounting bracket includes: The base frame, top box, and rotation limiting structure are included. The bottom end of the base frame is fixed to the worktable, and a rotatable top box is installed at the top of the base frame. The top box is equipped with a viscosity detection actuator. A rotation limiting structure is installed at the hinge between the top box and the base frame to restrict the rotation of the top box relative to the base frame.

5. The water-based coating viscosity detection system according to claim 4, characterized in that, An anti-extension bracket is installed at the top box. The anti-extension bracket is used to position the detachable positioning mechanism and the second positioning position of the detection rotating frame to maintain positioning cooperation.

6. The water-based coating viscosity detection system according to claim 5, characterized in that, The top box can rotate to the working position and the pre-inspection position. When in the pre-inspection position, the inspection rotating frame is offset from the container to be inspected located in the placement position. When in the working position, the inspection rotating frame is located in the container to be inspected that extends into the placement position. A support frame is installed next to the base frame, which supports the top box when it is in the pre-inspection position.

7. The water-based coating viscosity detection system according to claim 6, characterized in that, The anti-extension frame is connected to an adjustment part, which protrudes from the side of the top box. The anti-extension frame and the adjustment part can move together relative to the top box in the radial direction of the rotational torque sensor. When the rotation limiting structure allows the top box to rotate relative to the base frame, the rotation limiting structure causes the anti-extension frame to hook onto the detection rotating frame by squeezing the adjustment part; when the rotation limiting structure prevents the top box from rotating relative to the base frame, the rotation limiting structure does not squeeze the adjustment part.

8. The water-based coating viscosity testing system according to any one of claims 1 to 7, characterized in that, The rotary drive mechanism includes a rotary drive unit, a gear set, and a drive gear ring. The rotary drive unit is mounted on the top box. The output end of the rotary drive unit is connected to the input end of the gear set. The output end of the gear set meshes with the drive gear ring. The drive gear ring is connected to a rotary torque sensor. The drive gear ring and the rotary torque sensor do not obstruct the detection of the lifting and lowering of the rotating frame.

9. The water-based coating viscosity detection system according to claim 3, characterized in that, A detachable positioning mechanism is fixed on the guide section.

10. The water-based coating viscosity detection system according to claim 9, characterized in that, The detachable positioning mechanism includes a retaining ring and locking arms. The retaining ring is fixed to the guide portion, and an even number of locking arms are fixed on the retaining ring, with the locking arms evenly distributed on the circumference of the retaining ring.

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